Of my favorite reads 2019, surprisingly few already were on my TBR at the beginning of the year, so the year was at least as much a year of "great new catches" as it was for catching up with my TBR.
Just looking the books already on my TBR at the beginning of the year, the biggest "catches" of 2019 would have been (in reverse order in which I read them):
Arthur Conan Doyle, Danger
Kofi Annan, Interventions: A Life in War and Peace
(Task: St. Andrew was a fisherman by trade: Which book(s) from your TBR that you read this year turned out to be the year’s greatest “catch”?)